<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div class="filter-container" style="float: right">
      <el-input
        v-model="listQuery.name"
        clearable
        class="filter-item"
        style="width: 200px"
        placeholder="请输入角色名称"
      />
      <el-button
        v-permission="['GET /admin/role/list']"
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter"
      >查找
      </el-button
      >
      <el-button
        v-permission="['POST /admin/role/create']"
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate"
      >添加
      </el-button
      >
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row
    >
      <el-table-column align="center" label="角色名称" prop="name" sortable/>

      <el-table-column align="center" label="角色描述" prop="desc"/>

      <el-table-column
        align="center"
        label="操作"
        class-name="small-padding fixed-width"
      >
        <template slot-scope="scope">
          <el-button
            v-permission="['POST /admin/role/update']"
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)"
          >编辑
          </el-button
          >
          <el-button
            v-permission="['POST /admin/role/delete']"
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)"
          >删除
          </el-button
          >
          <el-button
            v-permission="['GET /admin/role/permissions']"
            type="primary"
            size="mini"
            @click="handlePermission(scope.row)"
          >授权
          </el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"
    />

    <!-- 添加或修改角色对话框 -->
    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form
        ref="roleForm"
        :rules="rules"
        :model="roleForm"
        status-icon
        label-position="left"
        label-width="100px"
        style="width: 400px; margin-left: 50px"
      >
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="roleForm.name"/>
        </el-form-item>
        <el-form-item label="角色描述" prop="desc">
          <el-input v-model="roleForm.desc"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取消</el-button>
        <el-button
          v-if="dialogStatus == 'create'"
          type="primary"
          @click="createRole"
        >确定
        </el-button
        >
        <el-button v-else type="primary" @click="updateRole">确定</el-button>
      </div>
    </el-dialog>

    <!-- 权限配置对话框 -->
    <el-dialog :visible.sync="permissionDialogFormVisible" title="权限配置">
      <el-tree
        ref="tree"
        :data="systemPermissions"
        default-expand-all="true"
        :default-checked-keys="assignedPermissions"
        show-checkbox
        node-key="id"
        highlight-current
      >
        <span slot-scope="{ node, data }" class="custom-tree-node">
          <span>{{ data.label }}</span
          >&nbsp;&nbsp;
          <el-tag v-if="data.api" type="success" size="mini">{{
            data.api
          }}</el-tag>
        </span>
      </el-tree>
      <div slot="footer" class="dialog-footer">
        <el-button @click="permissionDialogFormVisible = false">取消</el-button>
        <el-button type="primary" @click="updatePermission">确定</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {
  listRole,
  createRole,
  updateRole,
  deleteRole,
  getPermission,
  updatePermission,
} from "@/api/system/role";
import Pagination from "@/components/Pagination";

export default {
  name: "Role",
  components: {Pagination},
  data() {
    return {
      list: [], // 角色列表
      total: 0, // 数据总量
      listLoading: true,
      // element-admin 分页
      listQuery: {
        page: 1,
        limit: 20,
        name: undefined,
        sort: "createTime",
        order: "desc",
      },
      // 角色表单数据
      roleForm: {
        id: undefined,
        name: undefined,
        desc: undefined,
      },
      // 角色模态框启用状态
      dialogFormVisible: false,
      // 角色模态框类型 创建or编辑
      dialogStatus: "",
      // 角色模态框标题
      textMap: {
        update: "编辑",
        create: "创建",
      },
      // 验证规则
      rules: {
        name: [
          {required: true, message: "角色名称不能为空", trigger: "blur"},
        ],
      },
      // 权限配置模态框
      permissionDialogFormVisible: false,
      systemPermissions: null, // 权限数据
      assignedPermissions: null, // 勾选节点的数组
      // 权限表单数据
      permissionForm: {
        roleId: undefined,
        permissions: [],
      },
    };
  },
  created() {
    // 角色列表初始化
    this.getList();
  },
  methods: {
    // 获取角色列表信息
    getList() {
      this.listLoading = true;
      listRole(this.listQuery)
        .then((response) => {
          this.list = response.data.data;
          this.total = response.data.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.list = [];
          this.total = 0;
          this.listLoading = false;
        });
    },
    // 查询按钮钩子
    handleFilter() {
      this.listQuery.page = 1;
      this.getList();
    },
    // 重置角色表单数据
    resetForm() {
      this.roleForm = {
        id: undefined,
        name: undefined,
        desc: undefined,
      };
    },
    // 新增角色按钮
    handleCreate() {
      this.resetForm();
      this.dialogStatus = "create";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["roleForm"].clearValidate();
      });
    },
    // 确认新增角色
    createRole() {
      this.$refs["roleForm"].validate((valid) => {
        if (valid) {
          createRole(this.roleForm)
            .then((response) => {
              this.list.unshift(response.data);
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "添加角色成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    // 编辑角色按钮
    handleUpdate(row) {
      this.roleForm = Object.assign({}, row);
      this.dialogStatus = "update";
      this.dialogFormVisible = true;
      this.$nextTick(() => {
        this.$refs["roleForm"].clearValidate();
      });
    },
    // 确认编辑角色
    updateRole() {
      this.$refs["roleForm"].validate((valid) => {
        if (valid) {
          updateRole(this.roleForm)
            .then(() => {
              for (const v of this.list) {
                if (v.id === this.roleForm.id) {
                  const index = this.list.indexOf(v);
                  this.list.splice(index, 1, this.roleForm);
                  break;
                }
              }
              this.dialogFormVisible = false;
              this.$notify.success({
                title: "成功",
                message: "更新角色成功",
              });
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        }
      });
    },
    // 删除角色
    handleDelete(row) {
      this.$confirm("此操作将删除该角色, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          deleteRole(row)
            .then((response) => {
              this.$notify.success({
                title: "成功",
                message: "删除角色成功",
              });
              const index = this.list.indexOf(row);
              this.list.splice(index, 1);
            })
            .catch((response) => {
              this.$notify.error({
                title: "失败",
                message: response.data.errmsg,
              });
            });
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },
    // 获取权限信息
    handlePermission(row) {
      this.permissionDialogFormVisible = true;
      this.permissionForm.roleId = row.id;
      getPermission({roleId: row.id}).then((response) => {
        console.log("-------getPermission:%o", response);
        this.systemPermissions = response.data.systemPermissions;
        this.assignedPermissions = response.data.assignedPermissions;
      });
    },
    // 更新权限
    updatePermission() {
      this.permissionForm.permissions = this.$refs.tree.getCheckedKeys(true);
      updatePermission(this.permissionForm)
        .then((response) => {
          this.permissionDialogFormVisible = false;
          this.$notify.success({
            title: "成功",
            message: "授权成功",
          });
        })
        .catch((response) => {
          this.$notify.error({
            title: "失败",
            message: response.data.errmsg,
          });
        });
    },
  },
};
</script>

